Giving the following data for XY Company

year	2008	2009
Total Sales	$145,0000	$121,4000
Cost of goods sold	$880,000	$738,400
Selling & Administrative Expenses	$92,500	$80,700

Assume high-low method is adequate in this case, the variable costs of cost of goods sold per unit is

	1.	40%
	2.	50%
	3.	60%
	4.	65%